Fracturing device

ABSTRACT

A fracturing device includes a power unit, and the power unit includes a muffling compartment, a turbine engine, and an air intake unit. The air intake unit is communicated with the turbine engine through an intake pipe and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is at a top of the muffling compartment and the muffling compartment has an accommodation space, the turbine engine is within the accommodation space.

The present application is a continuation of U.S. Ser. No. 17/172,819filed on Feb. 10, 2021 which claims priority of Chinese PatentApplication No. 202110101567.8, filed on Jan. 26, 2021, the disclosureof these applications is incorporated herein by reference in itsentirety as part of the present application.

TECHNICAL FIELD

Embodiments of the present invention relates to a fracturing device.

BACKGROUND

In recent years, with increasing demand for unconventional gases such asshale gas, the demand for fracturing facilities is increasingsignificantly. A fracturing device typically comprises a main power unitand a plurality of auxiliary power units as well as some supportingunits. Such units are generally arranged transversely with a large size,which would not be convenient to transport. How to design a fracturingfacility having a small size and a compact structure for the convenienceof transportation in bad conditions such as in remote mountain areas isa crucial problem demanding prompt solution for those skilled in theart.

SUMMARY

Embodiments of the present disclosure provide a fracturing device,comprising a power unit, wherein the power unit comprises a mufflingcompartment, a turbine engine, and an air intake unit; the air intakeunit is communicated with the turbine engine through an intake pipe andconfigured to provide a combustion-supporting gas to the turbine engine;the air intake unit is at a top of the muffling compartment and themuffling compartment has an accommodation space, the turbine engine iswithin the accommodation space.

In some examples, the fracturing device further comprises at least oneelectric motor used for auxiliary power system, and the at least oneelectric motor is located at a side of the turbine engine away from theair intake unit.

In some examples, the power unit further comprises a starter within theaccommodation space; the starter is configured to start the turbineengine and comprises an electric motor which is at the side of theturbine engine away from the air intake unit; the first electric motoris configured to directly start the turbine engine; or, the turbineengine comprises a hydraulic system, the first electric motor isconfigured to drive the hydraulic system to start the turbine engine.

In some examples, the power unit further comprises a first lubricatingsystem configured to lubricate the turbine engine; the first lubricatingsystem comprises a first lubricating oil reservoir and a first drivingmechanism, and the first driving mechanism comprises a second electricmotor.

In some examples, the power unit further comprises a decelerationmechanism and a second lubricating system which are within theaccommodation space, and the second lubricating system is configured tolubricate the deceleration mechanism; the deceleration mechanism isconnected with an output shaft of the turbine engine; the secondlubricating system comprises a second lubricating oil reservoir and asecond driving mechanism, and the second driving mechanism comprises athird electric motor; the second lubricating system is at the side ofthe turbine engine away from the air intake unit.

In some examples, the power unit further comprises a firefightingsystem; the firefighting system comprises a firefighting detector and afirefighting material generator which are within the accommodationspace.

In some examples, a firefighting material is stored in the firefightingmaterial generator, and the firefighting material comprises an aerosol.

In some examples, the power unit further comprises an air inlet assemblyand an air outlet assembly. The air inlet assembly is located at a sideof the turbine engine along an axial direction of the turbine engine andcommunicated with the accommodation space; and the air outlet assemblyis located at another side of the turbine engine along the axialdirection of the turbine engine, disposed opposite to the air inletassembly and communicated with the accommodation space. The air outletassembly comprises an air outlet pipe and a lead-out portion connectedto the air outlet pipe, and the lead-out portion is configured to changean orientation of an air outlet of the air outlet assembly.

In some examples, the lead-out portion is in a shape of an elbow.

In some examples, the lead-out portion comprises a shielding portion andan air outlet portion; the shielding portion is configured to shield anair outlet of the air outlet pipe, and the air outlet portion isconfigured to exhaust a gas that flows from the air outlet pipe into thelead-out portion; an orthographic projection of the shielding portion ona plane, where the air outlet of the air outlet pipe is located, is atleast partially overlapped with the air outlet of the air outlet pipe,with an overlapping area greater than 30% of an area of the air outletof the air outlet pipe.

In some examples, the air outlet portion comprises a revolving shaft anda blade on the revolving shaft, and the blade is capable of rotatingaround the revolving shaft.

In some examples, the power unit further comprises an exhaust mufflerand the exhaust muffler comprises a gas delivery pipe; the gas deliverypipe is L-shaped, one end of the gas delivery pipe is communicated withthe turbine engine through an exhaust pipe and another end of the gasdelivery pipe has an upward exhaust port.

In some examples, the exhaust muffler further comprises a muffling layeron an inner wall of the gas delivery pipe and a perforated muffler plateon an inner wall of the muffling layer.

In some examples, the fracturing device further comprises a fracturingpump unit and a transmission mechanism. The fracturing pump unitcomprises a fracturing pump, and the fracturing pump unit is connectedto the power unit through the transmission mechanism, and the power unitis configured to drive the fracturing pump; the turbine engine, thetransmission mechanism and the fracturing pump are sequentially disposedin an axial direction of the turbine engine.

In some examples, the power unit further comprises a power skid and themuffling compartment is mounted on the power skid; the fracturing pumpunit further comprises a pump skid having a bearing surface; and thefracturing pump is mounted on the bearing surface of the pump skid.

In some examples, the power skid is detachably connected to the pumpskid.

In some examples, the fracturing device further comprises an integratedskid, and the power skid and the pump skid are respectively detachablyconnected to the integrated skid.

In some examples, the power skid comprises a turnable mechanism, and theturnable mechanism is configured to be turned over to a horizontal stateto carry the pump skid.

In some examples, the fracturing pump unit further comprises alubricating oil heat sink, and the lubricating oil heat sink is at aside of the fracturing pump away from the bearing surface of the pumpskid.

In some examples, the fracturing pump unit further comprises a thirdlubricating system; the third lubricating system comprises a thirdlubricating oil reservoir and a third driving mechanism, and the thirddriving mechanism comprises a fourth electric motor; and the thirdlubricating system is at a side of the transmission mechanism away fromthe air intake unit

BRIEF DESCRIPTION OF THE DRAWINGS

In order to clearly illustrate the technical solution of the embodimentsof the present disclosure, the drawings of the embodiments will bebriefly described. It is apparent that the described drawings are onlyrelated to some embodiments of the present disclosure and thus are notlimitative of the present disclosure.

FIG. 1 is a structural schematic diagram of a fracturing deviceaccording to at least one embodiment of the present disclosure;

FIG. 2 is a structural schematic diagram of a turbine engine accordingto at least one embodiment of the present disclosure;

FIG. 3A is a structural schematic diagram of a firefighting systemaccording to at least one embodiment of the present disclosure;

FIG. 3B is a structural schematic diagram of a firefighting systemaccording to some other embodiments of the present disclosure;

FIG. 4A is a structural schematic diagram of an air outlet assemblyaccording to at least one embodiment of the present disclosure;

FIG. 4B is a structural schematic diagram of an air outlet portionaccording to at least one embodiment of the present disclosure;

FIG. 5A is a structural schematic diagram of an exhaust muffleraccording to at least one embodiment of the present disclosure;

FIG. 5B is a structural schematic diagram of an exhaust muffler plateaccording to at least one embodiment of the present disclosure;

FIG. 5C is a structural schematic diagram of an exhaust muffleraccording to some other embodiments of the present disclosure;

FIG. 6 is a schematic diagram of a fracturing device according to someother embodiments of the present disclosure;

FIG. 7A is a structural schematic diagram of a fracturing deviceaccording to still other embodiments of the present disclosure;

FIG. 7B and FIG. 7C are structural schematic diagrams of a fracturingdevice according to further still other embodiments of the presentdisclosure; and

FIG. 8A and FIG. 8B are structural schematic diagrams of a fracturingdevice according to still other embodiments of the present disclosure.

DETAILED DESCRIPTION

In order to make objects, technical details and advantages ofembodiments of the present disclosure clear, the technical solutions ofthe embodiments will be described in a clearly and fully understandableway in connection with the related drawings. It is apparent that thedescribed embodiments are just a part but not all of the embodiments ofthe present disclosure. Based on the described embodiments herein, thoseskilled in the art can obtain, without any inventive work, otherembodiment(s) which should be within the scope of the presentdisclosure.

Unless otherwise defined, all the technical and scientific terms usedherein have the same meanings as commonly understood by one of ordinaryskill in the art to which the present disclosure belongs. The terms“first,” “second,” etc., which are used in the description and claims ofthe present disclosure, are not intended to indicate any sequence,amount or importance, but distinguish various components. The terms“comprises,” “comprising,” “includes,” “including,” etc., are intendedto specify that the elements or the objects stated before these termsencompass the elements or the objects listed after these terms as wellas equivalents thereof, but do not exclude other elements or objects.The phrases “connect”, “connected”, etc., are not intended to define aphysical connection or a mechanical connection, but may comprise anelectrical connection which is direct or indirect. The terms “on,”“under,” “right,” “left” and the like are only used to indicate relativeposition relationship, and in a case that the position of an object isdescribed as being changed, the relative position relationship may bechanged accordingly.

Since a turbine engine can directly use natural gas as fuel and has theadvantages of small size, light weight, high power density, etc.,driving by a turbine engine, compared to by a diesel engine, isconducive to reducing the size of the fracturing device and has theadvantages of environmental protection, high driving efficiency, etc.Moreover, the power supply pressure in a fracturing operation site canbe reduced when a turbine engine is used for driving compared todirectly using an electric motor for driving. In addition, the turbineengine further has the advantages of small size, light weight, highpower density and the like.

In another aspect, the turbine engine generates power through therotation of an impeller driven by a fluid. Therefore, it is necessary tokeep the impeller and blades of the turbine engine clean and preventdevice breakdown due to disruption in the balance of the impeller ordamage of the impeller caused by impurities.

At least one embodiment of the present disclosure provides a fracturingdevice which includes a power unit. The power unit includes a mufflingcompartment, a turbine engine, an air intake unit and a cleaner. The airintake unit is communicated with the turbine engine through an intakepipe and is configured to provide a combustion-supporting gas to theturbine engine. The cleaner is configured to clean the turbine engine.The air intake unit is located at the top of the muffling compartment,and the muffling compartment has an accommodation space. The turbineengine and the cleaner are located within the accommodation space. Thecleaner is located at the side, away from the air intake unit, of theturbine engine.

The fracturing device according to at least one embodiment of thepresent disclosure can facilitate the air intake unit to take in air bydisposing the air intake unit above (at the top of) the turbine engine,and meanwhile can realize a compact structure by disposing the cleanerbelow the turbine engine to arrange the fracturing device in threelayers (i.e. upper, middle and lower layers), which thus reduces thesize of the fracturing device and facilitates transportation. Inaddition, the turbine engine is disposed in the muffling compartment,which is conducive to noise reduction.

For example, the term “below” as used in this embodiment of the presentdisclosure is not necessarily about being “directly below” and may alsomean “obliquely below”.

In at least one embodiment, the cleaner is directly driven by electricpower, i.e., by an electric motor, so that the space occupied by thecleaner can be effectively reduced, and it is convenient to place thecleaner below the turbine engine. For example, the highest point of thecleaner is below the lowest point of the turbine engine. Such anarrangement may prevent the cleaner from shielding the turbine engine inthe height direction, thereby facilitating the maintenance of theturbine engine.

In another examples, the cleaner may also be driven pneumatically orhydraulically. The driving mode of the cleaner is not limited by theembodiments of the present disclosure.

FIG. 1 is a structural schematic diagram, for example, a side view, of afracturing device according to at least one embodiment of the presentdisclosure.

As shown in FIG. 1 , the fracturing device 5 includes a power unit 1.The power unit 1 includes a muffling compartment 11, a turbine engine12, an air intake unit 13 and a cleaner 14.

The muffling compartment 11 has an accommodation space 110, and theturbine engine 12 and the cleaner 14 are located within theaccommodation space 110. For example, a muffler such as soundproofsponge or a muffler plate is disposed on the inner wall of the mufflingcompartment.

The air intake unit 13 is located at the top of the muffling compartment11 and communicated with the turbine engine 12 through an intake pipe131, and the air intake unit 13 is configured to provide acombustion-supporting gas to the turbine engine 12. For example, the airintake unit 13 includes an intake filter and an intake muffler, and theintake muffler has one end connected to the intake filter and anotherend communicated with the intake pipe 131.

For example, the air intake unit 13 comprises a plurality of intakecabins 132 arranged side by side. The plurality of intake cabins 132help to enlarge the size of the air intake unit 13, thus providing ahigh gas capacity to increase the power of the turbine engine 12. Theintake cabins 132 also help to reduce the resistance of air intake andexhaust, thereby being conducive to prolonging the service life of theturbine engine.

For example, the air intake unit 13 extends beyond the range of themuffling compartment 11 in the axial direction of the turbine engine,helping to enlarge the size of the intake cabins and protect (e.g., keepout the rain) the structure (e.g., an air inlet assembly and an airoutlet assembly as described below) thereunder. It should be noted thatthe mentioned axial direction of the turbine engine may be the extensiondirection of a transmission shaft or an output shaft in the turbineengine.

The air intake unit 13 is fixed to the top of the muffling compartment11, for example, by welding.

For example, the cleaner 14 is located at the side, away from the airintake unit 13, of the turbine engine 12, i.e., below the turbineengine. For example, the cleaner 14 may be located directly or obliquelybelow the turbine engine 12. For example, the cleaner 14 includes awater tank 141 and a cleaning pump 142. For example, the cleaner 14 iselectrically driven, and the space used by the cleaner can thus bereduced. In another examples, the cleaner may be driven by an aircompressor which is located, for example, outside the mufflingcompartment. The air compressor may be driven electrically, for example.In further another examples, the cleaner may be driven by a hydraulicsystem which may be driven electrically for example.

For example, the power unit 1 further includes a starter located withinthe muffling compartment 11 and configured to start the turbine engine12.

For example, the starter includes an electric motor. For example, theelectric motor is configured to directly start the turbine engine 12,i.e., the turbine engine is started electrically. In this case, forexample, as shown in FIG. 2 , the starter 121 is integrated into theturbine engine.

The electric power needed to start the turbine engine is far less thanthat directly used to drive a fracturing pump unit, thus reducing thepower supply demand in the fracturing work site.

In another examples, the turbine engine 12 includes a hydraulic system.The electric motor in the starter is configured to drive the hydraulicsystem to start the turbine engine, i.e., the hydraulic system is drivenelectrically. For example, the electric motor is located at the side,away from the air intake unit, of the turbine engine 12.

Compared with a diesel-driven hydraulic system, the electric motor takesup only small space and thus can be placed below the turbine engine.

For example, the hydraulic system includes a hydraulic pump, a hydraulicmotor, various valves, a hydraulic oil reservoir, a hydraulic oilradiator, etc. For example, the hydraulic system is configured to bedriven by the electric motor to drive a fuel pump, a starting motor andso on of the turbine engine 12, thereby starting the turbine engine 12.

For example, the power unit further includes a first lubricating system122 configured to lubricate the turbine engine 12. FIG. 2 schematicallyshows a diagram of the turbine engine 12. As shown in FIG. 2 , the firstlubricating system 122 is integrated into the turbine engine 12.

The first lubricating system 122 includes a first lubricating oilreservoir 122 a and a first driving mechanism 122 b. The first drivingmechanism includes an electric motor, that is, the first lubricatingsystem is driven electrically.

For example, as shown in FIG. 1 , the power unit 1 further includes adeceleration mechanism 16 and a second lubricating system 161 which arelocated within the muffling compartment 11. The second lubricatingsystem 161 is configured to lubricate the deceleration mechanism 16. Thedeceleration mechanism 16 is connected to an output shaft of the turbineengine 12, and the deceleration mechanism 16 and the turbine engine 12are arranged along the axial direction of the turbine engine 12.

The second lubricating system 161 includes a second lubricating oilreservoir 161 a and a second driving mechanism 161 b. The second drivingmechanism 161 b includes an electric motor, i.e., the second lubricatingsystem 161 is driven electrically and thus can have a small size.

For example, as shown in FIG. 1 , the second lubricating system 161 islocated at the side, away from the air intake unit 13, of the turbineengine 12, for example, below the turbine engine 12. For example, thesecond lubricating system 16 and the cleaner 14 are arranged along theaxial direction of the turbine engine 12, and the second lubricatingsystem 16 is closer to the deceleration mechanism 16 than the cleaner14, thus facilitating the lubrication of the deceleration mechanism 16by the second lubricating system 161.

The muffling compartment is a relatively closed cabin. The operation ofthe turbine engine 12 can easily result in a high temperature or naturalgas leakage within the muffling compartment and the danger is concealed,which may result in lagging danger judgment in human inspection withoutreliable guarantee for the safety of the personnel and the device.

For example, the power unit 1 further includes a firefighting system.The firefighting system may realize advance warning on the danger withinthe muffling compartment. Moreover, in at least one example, thefirefighting system may automatically extinguish fire within themuffling compartment 11, thus greatly improving the reliability ofdevice operation and the safety of the personnel.

FIG. 3A is a schematic diagram of a firefighting system according to atleast some embodiments of the present disclosure. For the sake ofclarity, some components of the fracturing device are omitted from FIG.3A.

As shown in FIG. 3A, the firefighting system 17 includes at least onefirefighting detector 171 and a firefighting material generator 172which are located within the muffling compartment 11. The firefightingdetectors 171 may include, but not be limited to, a temperaturedetector, a smoke detector, a flame detector, a combustible gasdetector, etc. In the case where a plurality of types of firefightingdetectors are used, the number of the firefighting detector of each typewould not be limited too.

The firefighting material generator 172 is filled with a firefightingmaterial. For example, the firefighting material includes an aerosol.Compared with the traditional dry powder material, the aerosol in anequal volume can have a better fire extinguishing performance.Therefore, a container for the aerosol needs a smaller space and thuscan be easily disposed within the muffling compartment 11.

As shown in FIG. 3A, the firefighting system 17 includes a plurality offirefighting detectors 171 disposed at the top of the mufflingcompartment 11 for detection at different positions within the mufflingcompartment 11. For example, the firefighting detectors 171 are disposeddirectly above the turbine engine 12 and the deceleration mechanism 16,respectively. The firefighting detectors 171 can be the same ordifferent in type. The firefighting material generator 172 is disposedon a support column 160 between the turbine engine 171 and thedeceleration mechanism 16.

For example, the firefighting system 17 further includes an alertor 173,a controller 174, a firefighting monitor 175 and an emergency switch 176which are located outside the muffling compartment 11. The controller174 is in signal connection (e.g., communication connection) with thealertor 173, the turbine engine 171 and the firefighting materialgenerator 172 respectively. In the case where an anomaly (e.g., that atleast one of temperature, smoke consistency, combustible gasconcentration in the muffling compartment 11 is above a threshold value,or a flame is generated) is detected by the firefighting detector 171,the controller 174 is triggered to control the firefighting materialgenerator 172 to start automatically and eject the firefighting materialand simultaneously control the alertor 173 to give an alerting signal.

For example, the firefighting system 17 further includes a hand fireextinguisher 177 located outside the muffling compartment, allowing thepersonnel on the spot to extinguish fire manually. For example, the handfire extinguisher 177 may be a dry powder fire extinguisher.

FIG. 3B is a schematic diagram of a firefighting system in a fracturingdevice according to another examples of the present disclosure. As shownin FIG. 3B, the firefighting system includes a control unit, an alertor,a firefighting material generator, a plurality of temperature sensors, aplurality of smoke sensors and a plurality of combustible gas sensors.The control unit is in signal connection with the alertor, thefirefighting material generator, the temperature sensors, the smokesensors and the combustible gas sensors respectively.

For example, the control unit is configured to control the plurality oftemperature sensors to detect the temperature simultaneously atdifferent positions within the compartment of the turbine engine andgenerate a temperature data set from the obtained temperature data. Theoperation is repeated cyclically and the temperature data sets areoutput, thus realizing the detection of the temperature in thecompartment.

For example, the control unit is further configured to control theplurality of smoke detectors to detect the smoke simultaneously atdifferent positions within the compartment of the turbine engine andgenerate a smoke data set from the obtained smoke data. The operation isrepeated cyclically and the smoke data sets are output, thus realizingthe detection of the smoke in the compartment.

For example, the control unit is further configured to control theplurality of combustible gas sensors to detect the concentration of thecombustible gas simultaneously at different positions within thecompartment of the turbine engine and generate a combustible gas dataset from the obtained combustible gas concentration data. The operationis repeated cyclically and the combustible gas data sets are output,thus realizing the detection of the combustible gas in the compartment.The combustible gas includes, for example, methane.

For example, the control unit is further configured to, in response to apreset temperature threshold value, cyclically determine whether morethan half of temperature data in the temperature data sets is above thetemperature threshold value, output fire information if yes, and outputalert information if no, where the alert information contains thetemperature data of the temperature above the temperature thresholdvalue and detection positions thereof.

For example, the control unit is further configured to, in response to asmoke threshold value input from the outside, cyclically determinewhether more than half of smoke data in the smoke data sets is above thesmoke threshold value, output fire information if yes, and output alertinformation if no, where the alert information contains the smoke dataof the smoke above the smoke threshold value and detection positionsthereof.

For example, the control unit is further configured to, in response to acombustible gas concentration threshold value input from the outside,cyclically determine whether more than half of combustible gasconcentration data in the combustible gas data sets is above thecombustible gas concentration threshold value, output warninginformation if yes, and output alert information if no, where the alertinformation contains the values of combustible gas concentration abovethe combustible gas concentration threshold value and detectionpositions thereof.

For example, the control unit is further configured to, in response tothe fire information, trigger the firefighting material generator toperform firefighting operation, for example, ejecting aerosol, carbondioxide, etc., and simultaneously trigger the alertor to give analerting signal, for example, a sound signal and/or a light signal. Forexample, the firefighting material generator includes a sprinkler havingstructures such as a nozzle, a liquid reservoir and a pipe.

For example, the control unit is further configured to recheck thedetection of the combustible gas to improve the detection accuracy. Forexample, the control unit is configured to, in response to the fireinformation, determine whether the warning information is receivedsimultaneously, carry out no operation if yes, and if no, generate ananomaly set from all combustible gas concentration data of combustiblegas concentration below a combustible gas concentration threshold valueand the detection positions thereof, and output the anomaly set.

The firefighting system can recheck and calibrate the combustible gasconcentration sensors based on the temperature sensors and the smokesensors, and avoid disfunction of the equipment and further improve thefire safety performance of the equipment.

For example, as shown in FIG. 1 , the power unit 1 further includes anair inlet assembly 18 and an air outlet assembly 19. The air inletassembly 18 is located at one side of the turbine engine along the axialdirection of the turbine engine and is communicated with theaccommodation space of the muffling compartment 12. The air outletassembly 19 is located at the other side of the turbine engine along theaxial direction and disposed opposite to the air inlet assembly 8, andthe air outlet assembly 19 is communicated with the accommodation spaceof the muffling compartment 12. The air inlet assembly 18 and the airoutlet assembly 19 are configured to create a circulation environment inthe muffling compartment, helping to dissipate heat from thecompartment.

FIG. 4A shows an enlarged schematic diagram of the air outlet assembly19. For example, as shown in FIG. 4A, the air outlet assembly 19includes an air outlet pipe 191 and a lead-out portion 192 connected tothe air outlet pipe 191. The lead-out portion is configured to change anorientation of an air outlet 192 c of the air outlet assembly, therebyeffectively reducing sand wind that may enter the muffling compartmentvia the air outlet assembly to cause damage to the materials in thecompartment.

For example, during loading or transportation of the fracturing device,the air outlet assembly 19 is generally closer to the front, namely thetruck head, in the direction of transportation, while the air inletassembly 18 is closer to the back, namely the truck tail. Thus, thefracturing device can be conveniently unloaded to carry out fracturingwork after arriving at the work site. Consequently, duringtransportation, sand wind can easily get into the muffling compartmentvia the air outlet assembly 19.

As shown in FIG. 4A, the lead-out portion 192 is provided to change theorientation of the air outlet 192 c of the air outlet assembly 19 frombeing horizontally forward (i.e., along the moving direction) to beingobliquely downward, thus effectively reducing sand wind entering. Theorientation of the air outlet 192 c of the air outlet assembly 19 isshown by the dotted arrow in FIG. 4A. However, the orientation of theair outlet of the air outlet assembly with the lead-out portion is notlimited in the embodiments of the present disclosure. In anotherexamples, the air outlet 192 c may be upward or oriented laterally,which is not limited in the embodiments of the present disclosure. Forexample, the lead-out portion 192 is rotatably connected to the airoutlet pipe 191, and the orientation of the air outlet of the air outletassembly 19 can be changed by rotating the lead-out portion 192.

As shown in FIG. 4A, for example, the lead-out portion 192 is in theshape of an elbow and has a cone-shaped section with a cone angle of,for example, 40°-60° (e.g., 45°).

For example, as shown in FIG. 4A, the lead-out portion 192 includes ashielding portion 192 a and an air outlet portion 192 b. The shieldingportion 192 a is configured to shield an air outlet 191 a of the airoutlet pipe 191 to keep out the external sand wind. The air outletportion 192 b is configured to exhaust the gas that flows from the airoutlet pipe 191 into the lead-out portion 192. The dividing line betweenthe shielding portion 192 a and the air outlet portion 192 b is shown bythe dotted line perpendicular to the air outlet 191 a of the air outletpipe 191 in FIG. 4A, which actually is not necessarily present.

For example, the orthographic projection of the shielding portion 192 aon the plane where the air outlet 191 a of the air outlet pipe 191 ispositioned is at least partially overlapped with the air outlet 191 afor shielding, with an overlapping area greater than 30% of the area ofthe air outlet to realize effective shielding.

The lead-out portion 192 is structurally designed to realize shielding,which does not need extra power or control.

In another examples, for example, as shown in FIG. 4B, the air outletportion 192 b may include a revolving shaft 193 a and a blade 193 bdisposed on the revolving shaft 193 a. The blade 193 b is capable ofrotating around the revolving shaft, for example, under the action of anexternal force. For example, the revolving shaft and the blade arelocated at the air outlet of the air outlet portion. By rotating theblade, the air outlet portion can be opened and closed. For example, theair outlet portion may be closed during transportation and may be openedduring fracturing. FIG. 4B shows a schematic diagram of the revolvingshaft and the blade when the air outlet portion is closed (on the leftof FIG. 4B) and opened (on the right of FIG. 4B) respectively in adirection perpendicular to the air outlet surface of the air outletportion 192 b.

For example, the power unit further includes an exhaust muffler which iscommunicated with the turbine engine 12 through an exhaust pipe andconfigured to allow the gas from the turbine engine 12 to be exhaustedinto the atmosphere after being muffled and deflected. FIG. 5A shows astructural schematic diagram of an exhaust muffler according to at leastone embodiment of the present disclosure.

As shown in FIG. 5A, the exhaust muffler 20 includes an L-shaped gasdelivery pipe 201. The L-shaped gas delivery pipe 201 has an intake port201 a at one end, and the intake port 201 a is communicated with theturbine engine 12 through an exhaust pipe for gas intake, and the gasdelivery pipe 201 has an upward exhaust port 201 b at the other end, soas to exhaust the gas from the turbine engine to the atmosphere. Thedirection of gas delivery is shown by the arrow in FIG. 5A.

The exhaust muffler 20 further includes a muffling layer 202 disposed onthe inner wall of the gas delivery pipe 201 to serve for muffling. Noisegenerated during gas delivery can be effectively reduced when the gas inthe gas delivery pipe 201 is in contact with the muffling layer 202. Forexample, the muffling layer 202 includes soundproof sponge.

For example, the exhaust muffler 20 further includes a perforatedmuffler plate 203 located on the inner wall of the muffling layer 202.The perforated muffler plate 203 has holes to allow the gas in thedelivery pipe 201 to be in contact with the muffling layer 202 formuffling.

FIG. 5B shows a structural schematic diagram of the perforated mufflerplate 203. For example, the perforated muffler plate 203 is tubular, andFIG. 5B shows a partial schematic diagram of the perforated mufflerplate 203.

For example, the perforated muffler plate 203 has a plurality ofmuffling holes 203 a arranged in an array. Thus, the gas can be broughtinto full contact with the perforated muffler plate, and the mufflingeffect can be enhanced by collision between the gas and the hole wallsof the perforated muffler plate 203. For example, the muffling hole 203a has a radius of 2-8 mm. The planar shape of the muffling hole is notlimited in the embodiments of the present disclosure. For example, theplanar shape of the muffling hole may be elongated round, oval, square,diamond, etc.

For example, as shown in FIG. 5A, the intake port 201 a of the exhaustmuffler 20 has a retracted structure. The inner diameter of theretracted structure is gradually reduced along the intake direction. Thespace undergoes contraction when the exhaust gas enters the gas deliverypipe 201, so that the gas flow direction changes rapidly, therebyimproving the muffling effect.

For example, as shown in FIG. 5A, the exhaust muffler 20 furtherincludes a thermal insulating layer 204 located between the inner wallof the exhaust muffler 20 and the muffling layer 202 to prevent ahousing of the exhaust muffler from being too hot. For example, thethermal insulation design is necessary because the temperature of theexhaust gas from the turbine engine is up to 600° C.

For example, the exhaust muffler 20 further includes a water port 205located in the bottom. For example, when water flows into the exhaustmuffler 20, the water can be drained through the perforated mufflerplate 203 and finally discharged via the water port 205.

The exhaust muffler 20 shown in FIG. 5A keeps the gas delivery pipeunblocked while serving for muffling, thus reducing the exhaustresistance and improving the exhaust efficiency.

FIG. 5C is a structural schematic diagram of an exhaust muffleraccording to another embodiments of the present disclosure. As shown inFIG. 5C, the exhaust muffler 20 differs from the embodiment shown inFIG. 5A in that the exhaust muffler 20 includes a muffling barrier 206to realize the noise reduction function by increasing the exhaustresistance. For example, the muffling barrier 206 includes aheat-resisting material to absorb noise. For example, the heat-resistingmaterial is soundproof sponge. For example, the muffling barrier 206 isdisposed in a branch, close to the exhaust port 201 b, of the gasdelivery pipe 201, and the exhaust gas entering the pipe arrives at theexhaust port 201 b through the muffling barrier 206.

For example, in some examples, the air outlet of the lead-out portion192 of the air outlet assembly 19 is oriented towards the outer surfaceof the exhaust muffler 20, so that the surface of the exhaust muffler iscooled by the exhaust gas from the air outlet assembly 19, thusrealizing effective utilization of the exhaust gas.

As shown in FIG. 1 , the fracturing device 5 further includes afracturing pump unit 2. The fracturing pump unit 2 includes a fracturingpump 21 which is, for example, a plunger pump. The fracturing device 5further includes a transmission mechanism 3. For example, thetransmission mechanism 3 includes a coupling. For example, the couplingmay be in the form of a flexible coupling, a transmission shaft, aclutch, etc.

The fracturing pump unit 2 is connected to the power unit 1 through thetransmission mechanism 3, and the power unit 1 is configured to drivethe fracturing pump 21 to carry out fracturing work. The turbine engine12, the transmission mechanism 3 and the fracturing pump 21 are disposedin the axial direction of the turbine engine in sequence, for example,coaxially, thus improving the transmission efficiency.

FIG. 6 is a schematic diagram of a fracturing device according to atleast one embodiment of the present disclosure. As shown in FIG. 6 , theturbine engine, the deceleration mechanism, the transmission mechanismand the fracturing pump are disposed in the axial direction of theturbine engine in sequence, for example, coaxially, thus improving thetransmission efficiency.

For example, the fracturing device may further include a brake mechanismdisposed between the turbine engine and the fracturing pump, thusrealizing power cutoff between the fracturing pump and the turbineengine. For example, when the turbine engine is started, the speed isinitially not high enough, and the brake mechanism may be started toprevent the pump from being driven and affecting the fracturing effect.For example, the brake mechanism may include a brake block, a brakecaliper, etc.

As shown in FIG. 6 , the brake mechanism may be disposed at any one ormore of the position between the turbine engine and the decelerationmechanism (i.e. position A), the position between the decelerationmechanism and the transmission mechanism (i.e. position B) and theposition between the transmission mechanism and the fracturing pump(i.e. position C), finally realizing cutoff between power input andoutput. For example, as shown in FIG. 1 , the brake mechanism may belocated between the deceleration mechanism 16 and the transmissionmechanism 3 or integrated into the deceleration mechanism 16, providinga more compact integrated structure.

As shown in FIG. 1 , the fracturing pump unit 2 further includes a thirdlubricating system 22 which is configured to lubricate the fracturingpump 21. The third lubricating system 22 includes an electric motor 221and is located at the side, away from the air intake unit 13, of thetransmission mechanism 3. The third lubricating system 22 furtherincludes a lubricating oil reservoir 222.

For example, as shown in FIG. 1 , the third lubricating system 22 islocated below the transmission mechanism 3, thus saving space.

For example, as shown in FIG. 1 , the fracturing pump unit 2 furtherincludes a lubricating oil heat sink 23 which is configured to cool thethird lubricating system 22. The lubricating oil heat sink 23 is locatedabove the fracturing pump 21, i.e., at the side, away from a base of thefracturing pump 21, of the fracturing pump 21. For example, thelubricating oil heat sink 23 includes an electric motor 231 and aradiator 232.

The lubricating oil heat sink 23 and the fracturing pump 21 are arrangedlongitudinally, providing a more compact structure.

For example, the fracturing pump unit 2 further includes a fracturingpump base 24 located below the fracturing pump 21 (i.e., at the sideaway from the air intake unit 13). The fracturing pump base 24 isconfigured to bolster the fracturing pump 21, so that the fracturingpump 21 and the turbine engine 12 are linearly arranged in the axialdirection of the turbine engine 12, thus improving the transmissionefficiency.

For example, as shown in FIG. 1 , the fracturing device 5 furtherincludes a bottom skid 6. The power unit 1 and the pump unit 2 aremounted on the bottom skid 6 to be fixed.

In the example as shown in FIG. 1 , the fracturing device 5 is askid-mounted device. However, this is not limited in the embodiments ofthe present disclosure. In another examples, the fracturing device 5 mayalso be a vehicle-mounted device or a semitrailer mounted device.

FIG. 7A is a schematic diagram of a fracturing device according toanother embodiments of the present disclosure. As shown in FIG. 7A, thepower unit 1 further includes a power skid 51. The muffling compartment11 is mounted on the power skid 51 to be fixed. The pump unit 2 furtherincludes a pump skid 52. The pump skid 52 has a bearing surface 523, andthe fracturing pump 21 is mounted on the bearing surface 523 of the pumpskid 52 to be fixed. Control circuits and circuit traces for the powerunit 1 are disposed on the power skid 51 and control circuits andcircuit traces for the pump unit 2 are disposed on the pump skid 52.

The forms of the power skid and the pump skid are not limited in theembodiments of the present disclosure. For example, the power skid/pumpskid may merely include a bottom structure, or may include a bottomstructure and a cage structure extending upwards. The cage structure isconfigured to further fix the unit mounted on the bottom structure.

For example, the power skid 51 and the pump skid 52 are detachablyconnected to facilitate transportation. The connection manner of thepower skid 51 and the pump skid 52 is not limited in the embodiments ofthe present disclosure. For example, the two skids may be connectedthrough a fastener, a connecting plate, etc.

For example, the power skid 51 and the pump skid 52 may be connectedthrough a lug plate. One of the power skid 51 and the pump skid 52 has asingle-lug plate, while the other one has a double-lug plate, and thetwo plates are connected through a pin shaft.

FIG. 7B shows a three-dimensional diagram of the connection between thepower skid and the pump skid, and FIG. 7C shows a top view of theconnection. As shown in FIG. 7B, the power skid 51 has a single-lugplate 510, while the pump skid 52 has a double-lug plate 520. Thesingle-lug plate 510 is inserted into the double-lug plate 520. Pinholes of the two plates are aligned, and a pin shaft 530 is insertedinto the pin holes to connect the power skid and the pump skid.

For example, the fracturing device 5 may further include an integratedskid 53. The power skid 51 and the pump skid 52 are respectively mountedon the integrated skid 53 to be fixed. For example, the power skid 51and the pump skid 52 are detachably connected to the integrated skid 53separately, thereby facilitating transportation.

FIG. 8A and FIG. 8B are schematic diagrams of a fracturing deviceaccording to still another embodiments of the present disclosure. Unlikethe embodiment shown in FIG. 7A, the power skid 51 includes a turnablemechanism 54 which is configured to be turned over to a horizontal stateto carry the pump skid 52. For example, the pump skid 52 is detachablyconnected to the turnable mechanism 54. When the fracturing device istransported, the pump skid 52 may be removed and the turnable mechanism54 may be recovered. After the arrival at the work site, the turnablemechanism 54 may be turned over to be horizontal and the pump skid 52 ismounted on the turnable mechanism 54. FIG. 8A and FIG. 8B show schematicdiagrams of the turnable mechanism of the fracturing device beingrecovered and being working, respectively. For example, the power skid51 may be integrated with the muffling compartment and the turbineengine and the pump skid may be integrated with the fracturing pump. Forexample, the turnable mechanism 54 may further serve to bolster the pumpskid 52, so that the fracturing pump and the turbine engine are linearlyarranged in the axial direction of the turbine engine, thus improvingthe transmission efficiency.

In at least one example, the turbine engine in the fracturing device isdriven by a fuel (e.g., natural gas), while other auxiliary powersystems (e.g., power for the lubricating systems, the cooling system,the cleaner, the starter, the brake mechanism, the decelerationmechanism, the heat sink and the gas pipe system) are all drivenelectrically. As a result, the fracturing device has the advantages ofcompact structure, small size and environmental protection while havinghigh driving efficiency. In addition, the power supply pressure in thefracturing work site can be reduced.

The above described are only exemplary implementations of the presentdisclosure, and not intended to limit the protection scope of thepresent disclosure. The scope of the present disclosure is defined bythe appended claims.

What is claimed is:
 1. A fracturing device, comprising a power unit,wherein: the power unit comprises a muffling compartment, a turbineengine, and an air intake unit; the air intake unit is communicated withthe turbine engine through an intake pipe and configured to provide acombustion-supporting gas to the turbine engine; and the air intake unitis at a top of the muffling compartment and the muffling compartment hasan accommodation space, and the turbine engine is within theaccommodation space.
 2. The fracturing device according to claim 1,further comprising at least one electric motor used for auxiliary powersystem, and the at least one electric motor is located at a side of theturbine engine away from the air intake unit.
 3. The fracturing deviceaccording to claim 1, wherein: the power unit further comprises astarter within the accommodation space; the starter is configured tostart the turbine engine and comprises an electric motor which is at aside of the turbine engine away from the air intake unit; and theelectric motor is configured to directly start the turbine engine, orthe turbine engine comprises a hydraulic system and the electric motoris configured to drive the hydraulic system to start the turbine engine.4. The fracturing device according to claim 1, wherein: the power unitfurther comprises a lubricating system configured to lubricate theturbine engine; and the lubricating system comprises a lubricating oilreservoir and a driving mechanism, and the driving mechanism comprisesan electric motor.
 5. The fracturing device according claim 1, wherein:the power unit further comprises a deceleration mechanism and alubricating system which are within the accommodation space, and thelubricating system is configured to lubricate the decelerationmechanism; the deceleration mechanism is connected with an output shaftof the turbine engine; the lubricating system comprises a lubricatingoil reservoir and a driving mechanism, and the driving mechanismcomprises an electric motor; and the lubricating system is at a side ofthe turbine engine away from the air intake unit.
 6. The fracturingdevice according to claim 1, wherein: the power unit further comprises afirefighting system; and the firefighting system comprises afirefighting detector and a firefighting material generator which arewithin the accommodation space.
 7. The fracturing device according toclaim 6, wherein a firefighting material is stored in the firefightingmaterial generator, and the firefighting material comprises an aerosol.8. The fracturing device according to claim 1, wherein the power unitfurther comprises: an air inlet assembly, located at a side of theturbine engine along an axial direction of the turbine engine andcommunicated with the accommodation space; and an air outlet assembly,located at another side of the turbine engine along the axial directionof the turbine engine, disposed opposite to the air inlet assembly andcommunicated with the accommodation space, wherein the air outletassembly comprises an air outlet pipe and a lead-out portion connectedto the air outlet pipe, and the lead-out portion is configured to changean orientation of an air outlet of the air outlet assembly.
 9. Thefracturing device according to claim 8, wherein the lead-out portion isin a shape of an elbow.
 10. The fracturing device according to claim 8,wherein: the lead-out portion comprises a shielding portion and an airoutlet portion; the shielding portion is configured to shield an airoutlet of the air outlet pipe, and the air outlet portion is configuredto exhaust a gas that flows from the air outlet pipe into the lead-outportion; and an orthographic projection of the shielding portion on aplane, where the air outlet of the air outlet pipe is located, is atleast partially overlapped with the air outlet of the air outlet pipe,with an overlapping area greater than 30% of an area of the air outletof the air outlet pipe.
 11. The fracturing device according to claim 10,wherein the air outlet portion comprises a revolving shaft and a bladeon the revolving shaft, and the blade is capable of rotating around therevolving shaft.
 12. The fracturing device according to claim 1,wherein: the power unit further comprises an exhaust muffler and theexhaust muffler comprises a gas delivery pipe; and the gas delivery pipeis L-shaped, one end of the gas delivery pipe is communicated with theturbine engine through an exhaust pipe and another end of the gasdelivery pipe has an upward exhaust port.
 13. The fracturing deviceaccording to claim 12, wherein the exhaust muffler further comprises amuffling layer on an inner wall of the gas delivery pipe and aperforated muffler plate on an inner wall of the muffling layer.
 14. Thefracturing device according to claim 1, further comprising: a fracturingpump unit, comprising a fracturing pump; and a transmission mechanism,wherein the fracturing pump unit is connected to the power unit throughthe transmission mechanism, and the power unit is configured to drivethe fracturing pump; and wherein the turbine engine, the transmissionmechanism and the fracturing pump are sequentially disposed in an axialdirection of the turbine engine.
 15. The fracturing device accordingclaim 14, wherein: the power unit further comprises a power skid and themuffling compartment is mounted on the power skid; and the fracturingpump unit further comprises a pump skid having a bearing surface; andthe fracturing pump is mounted on the bearing surface of the pump skid.16. The fracturing device according to claim 15, wherein the power skidis detachably connected to the pump skid.
 17. The fracturing deviceaccording to claim 15, further comprising an integrated skid, whereinthe power skid and the pump skid are respectively detachably connectedto the integrated skid.
 18. The fracturing device according to claim 15,wherein the power skid comprises a turnable mechanism, and the turnablemechanism is configured to be turned over to a horizontal state to carrythe pump skid.
 19. The fracturing device according to claim 15, whereinthe fracturing pump unit further comprises a lubricating oil heat sink,and the lubricating oil heat sink is at a side of the fracturing pumpaway from the bearing surface of the fracturing pump skid.
 20. Thefracturing device according to claim 14, wherein: the fracturing pumpunit further comprises a lubricating system; the lubricating systemcomprises a lubricating oil reservoir and a driving mechanism, and thedriving mechanism comprises an electric motor; and the lubricatingsystem is at a side of the transmission mechanism away from the airintake unit.